The circulation pump is blocked.
In longer breaks between wash/rinse cycles (lasting weeks or months at a time), or when using for the first time, the pump may become dry and stick together.
Risk of scalding!
Remove the filter combination from the wash cabinet.
Pour 1 litre of warm water (max. 75 °C) with 3 to 5 drops of rinse aid into the dishwasher interior and let it soak for 5 minutes.
Then start the programme again.
Repeat this step 2 to 3 times.
